No. of Effective Pixels = 8.0M
Zoom (Optical / Digital) = 5X / 4X
Sensitivity Auto = ISO 64, 100, 200, 400, 640
Power Supply = 2 x AA Battery
Dimensions (W x H x D) = 93.0 x 61.7 x 30.5mm
Weight (Excluding Batteries / Card) = 140g
I believe above specs can meet your specs requirement, except the thickness of the camera.
You enquire 25mm and this model give you 30.5mm, different by 5.5mm doesnt not make any different i think.
Other than the thickness, i can not find anything that can not match your requirement.
note that....OLYMPUS take very bad picture if the ISO is more than 200.
Please try to shoot at ISO 400 and above in the shop before you buy, if you can accept the quality, this camera is perfect for you, as it fits into your required specs.